Aquarium



March 0; 10 2?. 1,620,006

I L. H. BURLIN AQUAR IUM Filed June 26, 1926 mllll llll \I Patented Mar.8, 1927.

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rounnny COMPANY, or nonrn cnrcaeo, ILLINoIs, A CORPORATION/0FILLINOIS.

AQUARIUM.

Application filedJuneZG, 1826. serial No. 118,755.

This inventionrelates to householdaquariums of the drum or barrel type,in which the annular shell or body member receives and holds in a watertight manner the flat transparent heads or end members in parallel andseparated relation. And the present improvement has for its object Toprovide a structural formation and association of parts of the annularplate metal body of an aquarium, whereby the fiat and transparent endheads or members are received and secured in place in a water tightcondition and in a ready and substantial manner, all as will hereinaftermore fully appear.

In the accompanying drawing:

Fig. 1 is an elevation of an aquarium of the drum type, embodying thepresent invention.

Fig. 2 is a top plan of the same.

Fig. 3 is a detail transverse section on line 33, Fig. 2. Y

Fig. 4 is a detail longitudinal section on line 4- 1, Fig. 2.

Like reference numerals indicate like parts in the different views.

The annular shell or body member 1 of the aquarium is formed as a splitring of plate metal, with each of its ends formed with an annularreceiving channel for the reception of the marginal portion of one ofthe transparent end heads or members 2 of the aquarium, and with each ofsuch channels formed by a split bead formation comprising a split outturned annular web 3, a like split annu lar intermediate web l, and alike split in turned web 5, with such parts integrally formed on therespective ends of the annular shell or body member 1, by the usualmetal rolling or beading operations.

The receiving channels formed as above described, are of a size a degreelarger than the size of the marginal portions of the transparent heads 2which they are intended to receive, and so that an intermediate filling6 of elastic packing or composition can be used as a setting for theheads 2 in the at tainment of an efiective water tight joint be tweenthe parts or elements.

In the described construction the annular split shell 1 is initiallyexpanded or spread to the required diameter, to permit the mtroductionof the transparent heads 2 into aligned relation with the channels ofsaid shell, after which the shell is allowed to contract and engage themargins of the transparent heads 2 in the receiving channels aforesaid.

In such assemblage of parts, the elastic packing 6, may be in placeduring the above described assembly operation, or subsequently appliedas found most desirable by the manufacturer. In this connection amaterial feature of the invention involves means for securing the splitshell or bodv member 1 in its proper contracted condition upon thetransparent end heads 2. In the construction shown, such means comprisesa coupling plate 7 spanning the split or parting in the split shell 1and secured to said shell adjacent to said split by screw bolts 8passing through orifices in both parts, with the orifice in one partadapted to register with its complementary orifice in the other partwhen the annular shell or body member 1, is in its properly contractedcondition.

In this improvement the coupling plate 7 is formed with an orifice 9 toconstitute the entry passage to the interior of the aquarium and to suchend is of an open and preferably approximately elliptical ring form asshown, having any desired ornamental configuration, with its respectiveends formed with pivot eyes 10 for the attachment of loop shaped ringsor handles 11 for convenient handling of the aquarium.

Having thus fully described my invention what I claim and desire tosecure by Letters Patent is 1. An J aquarium comprising in combination,an annular split shell of plate metal formed with receiving channels atits respective ends, end walls of transparent material having marginalengagement in said chan-' nels, and means for securing the split shellin a contracted condition on said end walls, the same comprising acoupling plate spanning the split of the split shell and secured to theadjacent ends thereof by screw bolts, said coupling plate having anorifice constituting the entry passage to the aquarium chamber.

2. An aquarium comprising in combination, an annular split shell ofplate metal formed with receiving channels at its respective ends, endwalls of transparent material having marginal engagement in saidchannels, and means for securing the split shell in a contractedcondition on said end walls, the same comprising a coupling plate of anopen center and approximately elliptical form spanning the adjacent endsof the split shell with the parts secured together by screw bolts, theopen center of the coupling plate constituting an entry passage to theaquarium chamber.

3. An aquarium comprising in combination, an annular split shell ofplate metal formed with recelving channels at its respective ends, endwalls of transparent material having marginal engagement in said channels, and means for securing the split shell in a contracted conditionon said end Walls,

the same comprising a coupling plate of an open center and approximatelyelliptical form spanning the adjacent ends of the split shell with theparts secured together by screw bolts, the open center of the couplingplate constituting an entry passage to the aquarium chamber, saidcoupling piece having pivot ears at its opposite ends for the receptionof loop shaped handles for the convenient handling of the aquarium.

Signed at Chicago, Illinois, this 24th day of June, 1926.

LESLIE H. BURLIN.

